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Dr. StrangeLiPo ... or How I Learned To Stop Worrying & Love The Battery !
 Moderated by: W C Greene Page:  First Page Previous Page  1  2  3  4  5  6  Next Page Last Page  
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 Posted: Thu May 11th, 2017 02:59 pm
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Helmut
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Nice summation, but I think you forgot to take into account that for that receiver you need an additional 5V-supply or BEC, as it needs at least 4.8V, not exceeding 6V ( This is the standard R/C spec. ). Normally the speed-controller's logic takes its supply from the receiver, so that BEC must be able to supply both. Not a great issue, but to be kept in mind.
When I was still in 1:20 Outdoor Railroading, all my BPRC locos were equipped with components similar to Si's listings. You just have the room there for all that modularity, which I doubt will be available in 1:35.
May I also humbly remark that for RR puroses, those car transmitters are almost unusable in their 'as-is' form? The trigger-type speed control doesn't work so well with locos, when you want some more than on-off operation. Forward and reverse swings are different and do not give the same speed range. The spring-loaded centered steering wheel is a wee bit better, but still you have only some 30..45° degrees of control adjustment.

Last edited on Thu May 11th, 2017 03:13 pm by Helmut



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 Posted: Thu May 11th, 2017 03:29 pm
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Si.
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Hi Helmut :wave:



The 5 Volt logic-supply, is made by the E.S.C.s that I have speced.



So ... inside the loco, there needs to be :-

Receiver.

Electronic Speed Controller.

Battery.

DC-DC 9 Volt step-up regulator.



The parts should easily fit in the 1:35n2 Plymouth ... I think.

The R.C.ing business is generally a 'shoehorning' operation, I have noticed.

Unless of course you are doing perhaps 'O' or 'G' standard-gauge, or have huge tenders etc.



I have both a 'fixed' & 'adjustable' DC-DC step-up regulator coming.

Both extremely small.

More on these soon.

One cost £0.57p inc. P&P

The other £1.28 inc. P&P



:moose:



Si.



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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu May 11th, 2017 03:34 pm
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Si.
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" for RR puroses, those car transmitters are almost unusable in their 'as-is' form?
The trigger-type speed control doesn't work so well with locos, when you want some more than on-off operation.
Forward and reverse swings are different and do not give the same speed range.
The spring-loaded centered steering wheel is a wee bit better,
but still you have only some 30..45° degrees of control adjustment."



Hi again Helmut :wave:



Sounds like I might as well just give up then ...

... and simply go back to using my reliable, cheap & easy to wire-up, Tri-ang resistance-controller.



Maybe I should get out, while the going is good ...

... I've only wasted £15 so far.

Perhaps I could sell the parts on eBay & not loose too much money ?



:f:



Si.








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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu May 11th, 2017 05:19 pm
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W C Greene
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Gee, I didn't know that the "r/c car" pistol transmitters don't control locos properly. I guess that I will need to get rid of the two I have been using for 15 years or so and find something "more appropriate". I have believed that they worked pretty well all this time but what do I know anyway?
Hmmm, since I am on social security, I imagine that I will have to keep things as is and have fun running my antique trains with my caveman equipment.
Now, is anyone willing to front me the money to buy the latest toys?

Troublesome Outlaw Woodie



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 Posted: Sun May 14th, 2017 02:28 am
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Michael M
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This is why I ask the experts to save myself a lot of frustration. 

I'll check out the FlySky



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 Posted: Sun May 14th, 2017 03:02 am
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Michael M
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Is this what you had in mind?

http://www.ebay.com/itm/Flysky-FS-GT2B-2-4G-3CH-Transmitter-W-Battery-GR3E-Receiver-Radio-System-For-RC-/322163477666?hash=item4b02708ca2:g:39AAAOSwoBtW341m



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 Posted: Sun May 14th, 2017 04:48 am
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Si.
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Hi Michael :wave:


Yes it is, more or less.


I couldn't work out the shipping cost on your link, cos I didn't have a U.S. zip-code handy.

But, shipping was extra, & it seems like there are things in the deal you don't need, like a battery for example.

It did look to be coming from New York though, so might be worth a few bucks extra for speed.


I just very quickly found this one, which is in fact I think what I was looking at a few days ago.

FlySky Tx. & Rx. Twin-Set - $24.15c inc. P&P

This one doesn't include any extras, like batteries etc.


It is also a 2-channel transmitter, not a 3-channel like your link.

The cheap Flysky receivers, all seem to be 3-channel ones.

The difference appears to be, you either get a 2 or 3 channel transmitter.

The receiver will either operate as a 2 or 3 channel, depending on what is controlling it.


I didn't enter any specific code-numbers & stuff like that to search for it.

I just used the search-term 'FlySky Transmitter Receiver' ...

... and 'worldwide listings' then 'cheapest inc. P&P first'.


I found one the other day for about £19 U.K. pounds inc. P&P



:thumb:



Si.



When I find my £0.99p transmitter don't do $4!7 ... I'll probably have to buy one ! ;)




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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Wed May 17th, 2017 08:43 pm
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Si.
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??? . . . L: . . . :us: . . . :dope:


I'm not sure how it works.

I bought it cos I liked the colour & have loads of black 'wall warts' already.

You plug it into a 5 Volt OOOSB socket, via the included lead.

It has 6 battery sockets & 6 red LEDs.


I guess it's a trickle-charger :slow: ?

Does it switch off when the jobs done ?

Do the lights go OFF when the battery/ies are charged ?

Do the lights change individually, if say you charge both a large & small battery at the same time ?



:mex:



Si.



The design & marketing boys dun me on this one ...

... I payed £0.65p more than I needed to, cos I thought a green one looked :cool: !




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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu May 18th, 2017 08:34 am
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Si.
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Hi Guys :wave:



In looking at the battery connector situation & finding some to buy ...

... I have only just realized that the female cable-socket on my LiPos does not fit the male cable-plug on my 2 ESCs. :f:



The female cable-socket on the LiPos seems to be 'standard', with 2 small side-wings, as is the charger chassis-plug.



I really need to buy some matching male cable-plugs, to connect to the LiPos.

Does anyone know the name of the 'standard' LiPo/charger  socket/plug  connector ?

I have searched quite a bit & don't seem to see them coming up among battery connectors.



For other various connections, I think I am going to go with the 1.25mm pitch Molex micro-blade.

It seems easily available, whilst the marginally smaller 1.00mm less so.

The 2.00mm series seems fairly easy to get as well.

Mmm...



The correct name & finding the battery connectors, has me stumped at the moment ! :f:

Is the LiPo/charger connector generally called a 'LOSI micro' ? L:

Ah ! ... It seems to be called a 'JST micro 2.00' ( I think ).



Si.



It's nice to see most of the parts on the bench anyhow.

Their relative size can now be seen alongside a number of locos I have.



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu May 18th, 2017 10:06 am
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Michael M
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Si,

I kinda ran into the same problem.  It seemed that everyone used a different style or size connector and there wasn't any kind of 'standard'.  Someone here recommended the JST 1.25 connectors and so that's what I've been using on everything.  It just seemed to make life easier rather than worrying which connector a LiPo/charger/circuit board had.  I just buy what I need knowing I'm going to change the connector anyway.  There are bigger things to worry about such as which loco to convert to RC next.



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